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10 Charlbert Street London NW8 7BP

26/03015/FULLFull Planning Permission ApplicationApproved
Full

Approved on 1 July 2026

Site boundary (council red line)

Proposal

Variation of condition 1 of planning permission dated 4th July 2025 (RN 25/02612/FULL) for the replacement of existing loft dormer with an enlarged dormer extension; replacement of existing ground floor extension roof with a flat roof & a sliding door within the existing opening; installation of new conservation rooflights to the front elevation; a new small side window to the first floor; and replacement of rear first floor windows. NAMELY, to vary the plans to allow for an increase in the parapet height.

Received
7 May 2026
Ward
Regent's Park
Agent
Lowell Design and Build
  1. Received7 May
  2. Validated7 May
  3. Consult.
  4. Target2 Jul
  5. Decided1 Jul

Decided in 55 days (council typically 49)

About this application

This is a full planning application for a dormer extension at 10 Charlbert Street London NW8 7BP. Westminster has handled 4,484 applications of this type. This one was decided in 55 days, 6 days longer than Westminster's typical decision time. The site is in 1 listed building nearby. There has been 1 other application at this address. In the past year there have been 120 applications across Regent's Park. We hold 2,759 applications in total for the NW8 postcode area.

86% of full applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
NW8 7BP
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
7 May 2026
Consultation expiry
10 June 2026
Target decision date
2 July 2026

Applicant and agent

Agent
Lowell Design and Build
Architect profile
LOWELL DESIGN AND BUILD LTD
Agent address
14 Clerkenwell Green London London EC1 0QJ GB

Planning decision

Statutory period
56 days

Publicity

Last advertised
20 May 2026
Advertisement expiry
10 June 2026

Additional information

Planning Portal ID
PP-14917459
Comments
0
Documents
11

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref STM22Part of the site
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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